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DIVIDENDS AND DISTRIBUTIONS PAYABLE | 12 Months Ended
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Dec. 31, 2011
Equity [Abstract] |
Dividends and Distributions Payable | Dividends and Distributions Payable On November 29, 2011, the Board of Trustees declared a cash dividend for the quarter ended December 31, 2011, of $0.18 per Common Share, which was paid on February 1, 2012 to holders of record as of December 31, 2011.

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- Definition Dividends and Distributions Payable [Text Block] + References No definition available. + Details
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